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#include "Rml.hpp"
#include <easylogging++.h>
#include "AssetManager.hpp"
#include "Shader.hpp"
#include "Utility.hpp"
double RmlSystemInterface::GetElapsedTime() {
return totalTime;
}
bool RmlSystemInterface::LogMessage(Rml::Log::Type type, const Rml::String& message) {
switch (type) {
case Rml::Log::Type::LT_ALWAYS:
LOG(ERROR) << message;
break;
case Rml::Log::Type::LT_ERROR:
LOG(ERROR) << message;
break;
case Rml::Log::Type::LT_ASSERT:
LOG(ERROR) << message;
break;
case Rml::Log::Type::LT_WARNING:
LOG(WARNING) << message;
break;
case Rml::Log::Type::LT_INFO:
LOG(INFO) << message;
break;
case Rml::Log::Type::LT_DEBUG:
LOG(DEBUG) << message;
break;
case Rml::Log::Type::LT_MAX:
LOG(DEBUG) << message;
break;
}
return true;
}
void RmlSystemInterface::SetClipboardText(const Rml::String& text) {
clipboard = text;
}
void RmlSystemInterface::GetClipboardText(Rml::String& text) {
text = clipboard;
}
RmlRenderInterface::RmlRenderInterface(RenderState& renderState) : State(&renderState) {
auto gal = Gal::GetImplementation();
auto pipelineConfig = gal->CreatePipelineConfig();
pipelineConfig->AddShaderParameter("viewportSize", Gal::Type::Vec2u32);
pipelineConfig->AddShaderParameter("translation", Gal::Type::Vec2);
pipelineConfig->SetTarget(gal->GetDefaultFramebuffer());
auto vertAsset = AssetManager::GetAssetByAssetName("/altcraft/shaders/vert/rml");
std::string vertSource((char*)vertAsset->data.data(), (char*)vertAsset->data.data() + vertAsset->data.size());
auto pixelAsset = AssetManager::GetAssetByAssetName("/altcraft/shaders/frag/rml");
std::string pixelSource((char*)pixelAsset->data.data(), (char*)pixelAsset->data.data() + pixelAsset->data.size());
pipelineConfig->SetVertexShader(gal->LoadVertexShader(vertSource));
pipelineConfig->SetPixelShader(gal->LoadPixelShader(pixelSource));
auto vertBuffBind = pipelineConfig->BindVertexBuffer({
{"pos", Gal::Type::Vec2},
{"color", Gal::Type::Vec4u8},
{"", Gal::Type::Vec2}, //it's not used in shader, so driver optimizes it away
});
auto indexBuffBind = pipelineConfig->BindIndexBuffer();
pipeline = gal->BuildPipeline(pipelineConfig);
vertexBuffer = gal->CreateBuffer();
indexBuffer = gal->CreateBuffer();
pipelineInstance = pipeline->CreateInstance({
{vertBuffBind, vertexBuffer},
{indexBuffBind, indexBuffer},
});
glCheckError();
auto texturePipelineConfig = gal->CreatePipelineConfig();
texturePipelineConfig->AddShaderParameter("viewportSize", Gal::Type::Vec2u32);
texturePipelineConfig->AddShaderParameter("translation", Gal::Type::Vec2);
texturePipelineConfig->AddShaderParameter("fontTexture", Gal::Type::Int32);
texturePipelineConfig->SetTarget(gal->GetDefaultFramebuffer());
auto texturePixelAsset = AssetManager::GetAssetByAssetName("/altcraft/shaders/frag/rmltex");
std::string texturePixelSource((char*)texturePixelAsset->data.data(), (char*)texturePixelAsset->data.data() + texturePixelAsset->data.size());
texturePipelineConfig->SetVertexShader(gal->LoadVertexShader(vertSource));
texturePipelineConfig->SetPixelShader(gal->LoadPixelShader(texturePixelSource));
auto texVertBuffBind = texturePipelineConfig->BindVertexBuffer({
{"pos", Gal::Type::Vec2},
{"color", Gal::Type::Vec4u8},
{"tex_coord", Gal::Type::Vec2},
});
auto texIndexBuffBind = texturePipelineConfig->BindIndexBuffer();
texPipeline = gal->BuildPipeline(texturePipelineConfig);
texPipelineInstance = texPipeline->CreateInstance({
{texVertBuffBind, vertexBuffer},
{texIndexBuffBind, indexBuffer},
});
glCheckError();
}
RmlRenderInterface::~RmlRenderInterface() {
glCheckError();
}
void RmlRenderInterface::RenderGeometry(Rml::Vertex* vertices, int num_vertices, int* indices, int num_indices, Rml::TextureHandle texture, const Rml::Vector2f& translation) {
indexBuffer->SetData({ reinterpret_cast<std::byte*>(indices), reinterpret_cast<std::byte*>(indices + num_indices) });
vertexBuffer->SetData({ reinterpret_cast<std::byte*>(vertices), reinterpret_cast<std::byte*>(vertices + num_vertices) });
glCheckError();
if (texture) {
texPipeline->Activate();
glCheckError();
texPipeline->SetShaderParameter("translation", glm::vec2(translation.x, translation.y));
glCheckError();
texPipelineInstance->Activate();
glCheckError();
glBindTexture(GL_TEXTURE_2D, texture);
glCheckError();
texPipelineInstance->Render(0, num_indices);
} else {
pipeline->Activate();
glCheckError();
pipeline->SetShaderParameter("translation", glm::vec2(translation.x, translation.y));
glCheckError();
pipelineInstance->Activate();
glCheckError();
pipelineInstance->Render(0, num_indices);
}
glCheckError();
}
void RmlRenderInterface::EnableScissorRegion(bool enable) {
if (enable)
glEnable(GL_SCISSOR_TEST);
else
glDisable(GL_SCISSOR_TEST);
}
void RmlRenderInterface::SetScissorRegion(int x, int y, int width, int height) {
glScissor(x, vpHeight - (y + height), width, height);
glCheckError();
}
bool RmlRenderInterface::LoadTexture(Rml::TextureHandle& texture_handle, Rml::Vector2i& texture_dimensions, const Rml::String& source) {
return false;
}
bool RmlRenderInterface::GenerateTexture(Rml::TextureHandle& texture_handle, const Rml::byte* source, const Rml::Vector2i& source_dimensions) {
int mipLevelCount = 1;
glActiveTexture(GL_TEXTURE0);
GLuint texture;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glCheckError();
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, source_dimensions.x, source_dimensions.y, 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, source);
glCheckError();
texture_handle = texture;
return true;
}
void RmlRenderInterface::ReleaseTexture(Rml::TextureHandle texture) {
GLuint textures = texture;
glDeleteTextures(1, &textures);
glCheckError();
}
void RmlRenderInterface::Update(unsigned int windowWidth, unsigned int windowHeight) {
glCheckError();
pipeline->SetShaderParameter("viewportSize", glm::uvec2(windowWidth, windowHeight));
texPipeline->SetShaderParameter("viewportSize", glm::uvec2(windowWidth, windowHeight));
texPipeline->SetShaderParameter("fontTexture", 0);
vpWidth = windowWidth;
vpHeight = windowHeight;
}
Rml::FileHandle RmlFileInterface::Open(const Rml::String& path) {
Rml::FileHandle fileId = handles.rbegin() != handles.rend() ? handles.rbegin()->first + 1 : 1;
while (handles.find(fileId) != handles.end())
fileId++;
AssetHandle handle;
handle.fileName = path;
std::string assetName = path;
if (*assetName.begin() != '/')
assetName = "/" + assetName;
handle.assetPtr = AssetManager::GetAssetByAssetName(assetName);
handle.filePos = 0;
if (handle.assetPtr != nullptr)
handles.insert(std::make_pair(fileId, handle));
else
fileId = 0;
return fileId;
}
void RmlFileInterface::Close(Rml::FileHandle file) {
handles.erase(file);
}
size_t RmlFileInterface::Read(void* buffer, size_t size, Rml::FileHandle file) {
size_t readed = 0;
readed = _min((size_t)(handles[file].assetPtr->data.size() - handles[file].filePos), size);
std::memcpy(buffer, handles[file].assetPtr->data.data() + handles[file].filePos, readed);
handles[file].filePos += readed;
return readed;
}
bool RmlFileInterface::Seek(Rml::FileHandle file, long offset, int origin) {
unsigned long long base = 0;
if (origin == SEEK_CUR)
base = handles[file].filePos;
else if (origin == SEEK_END)
base = handles[file].assetPtr->data.size();
handles[file].filePos = base + offset;
return true;
}
size_t RmlFileInterface::Tell(Rml::FileHandle file) {
return handles[file].filePos;
}
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